Peter's already a bit of a national treasure, an incredibly skilled, fine actor

Stephen Moffat

For Capaldi's first season, Moffat promises something different for Doctor Who.

He added: "It will offer the best ever entrance into the TARDIS."

And reassuring fans about the changeover he said: "I sympathise with the kids who have grown up with Matt.

"It's like when you move home and your mum and dad say, 'You'll make new friends.'

"I always resented the intruder, but then after a while I forgot there had been one before him."

But before that, there is the 30th anniversary show, to be shown on November 23, also featuring the return of the 10th Doctor, David Tennant, 42, former assistant Rose, played by Billie Piper, 31, and veteran actor John Hurt, 73, as a mysterious version of the Doctor.